<template>
  <div class="login-container">
    <el-form
      ref="loginForm"
      :model="loginForm"
      :rules="loginRules"
      class="login-form"
      auto-complete="on"
      label-position="left"
    >
      <!-- 放置标题图片 @是设置的别名-->
      <div class="title-container">
        <h3 class="title">
          <img src="@/assets/common/login-logo.png" alt="" />
        </h3>
      </div>

      <!-- 手机号 -->
      <el-form-item prop="mobile">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="mobile"
          v-model="loginForm.mobile"
          placeholder="输入手机号"
          name="mobile"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <!-- 密码 -->
      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="输入密码"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon
            :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"
          />
        </span>
      </el-form-item>

      <!-- 登录按钮 -->
      <el-button
        class="loginBtn"
        :loading="loading"
        type="primary"
        style="width: 100%; margin-bottom: 30px"
        @click.native.prevent="handleLogin"
      >
        登录
      </el-button>

      <!-- 提示消息 -->
      <div class="tips">
        <span style="margin-right: 20px">mobile: 13800000002</span>
        <span>password: 123456</span>
      </div>
    </el-form>
  </div>
</template>

<script>
import { validMobile } from '@/utils/validate'
import { mapActions } from 'vuex'

export default {
  name: 'Login',
  data() {
    const validatemobile = (rule, value, callback) => {
      // rule是该字段有的校验规则; value是字段的数据: callback回调函数，成功要执行，失败也要执行
      // callback() // 成功了// callback(new Error("校验错误了'))
      // 失败了//value是否符合手机的验证规则

      // if (!validmobile(value)) {
      //   callback(new Error('校验错误了'))
      // } else {
      //   callback()
      // }
      validMobile(value) ? callback() : callback(new Error('格式不正确'))
    }

    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('密码不正确'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        mobile: '13800000002',
        password: '123456'
      },
      // 校验字段:校验规则数组 里面每个对象是一个校验规则对象
      // required 表示是否必须设置
      // trigger 触发时机
      // validator 自定义校验函数
      // 很多很多的校验规则配置: https://github.com/yiminghe/async-validator
      loginRules: {
        mobile: [
          { required: true, trigger: 'blur', message: '手机号不能为空' },
          {
            validator: validatemobile,
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, trigger: 'blur', validator: validatePassword }
        ]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      // eslint-disable-next-line space-before-function-paren
      handler: function (route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    // 登录 异步ajax操作
    ...mapActions('user', ['loginActions']),

    //
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },

    //! 密码：Enter登录     登录：click登录
    handleLogin() {
      // eslint-disable-next-line space-before-function-paren
      this.$refs.loginForm.validate(async (valid) => {
        if (valid) {
          try {
            this.loading = true

            // 使用模块化获取token mapActions异步操作获取到数据
            await this.loginActions(this.loginForm)

            // 跳转
            this.$router.push({ path: this.redirect || '/' })

            // 登录成功提示消息
            this.$message.success('登录成功')
          } catch (e) {
            console.log('登录失败', e)
          } finally {
            //  不论执行try 还是catch  都去关闭转圈
            this.loading = false
          }
        }
      })

      //   this.$refs.loginForm.validate((valid) => {
      //     if (valid) {
      //       this.loading = true

      //       // 触发 user下登录接口
      //       this.$store
      //         .dispatch('user/loginActions', this.loginForm)
      //         .then(() => {
      //           this.$router.push({ path: this.redirect || '/' })
      //           this.loading = false
      //         })
      //         .catch(() => {
      //           this.loading = false
      //         })
      //     } else {
      //       console.log('error submit!!')
      //       return false
      //     }
      //   })
      // }
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
// 设置手机号和密码的字体颜色
$light_gray: #68b0fe; // 将输入框颜色改成蓝色
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  background-image: url('~@/assets/common/login.jpg'); // 设置背景图片
  background-position: center; // 将图片位置设置为充满整个屏幕
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      // -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    // border: 1px solid rgba(255, 255, 255, 0.1);
    // background: rgba(0, 0, 0, 0.1);
    // border-radius: 5px;
    // color: #454545;

    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.7); // 输入登录表单的背景色
    border-radius: 5px;
    color: #454545;
  }

  // 设置错误信息的颜色
  .el-form-item__error {
    color: #fff;
  }

  .loginBtn {
    background: #407ffe;
    height: 64px;
    line-height: 32px;
    font-size: 24px;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
